Mechanical properties and reaction mechanism of microwave-activated crumb rubber-modified asphalt before and after thermal aging

The anti-aging properties and related mechanism of microwave-activated crumb rubber-modified asphalt (ACRMA) were evaluated in this study. Physical and rheological tests were conducted on ACRMA before and after simulated thermal aging, and several microcosmic tests were performed to analyze the aging mechanism. The stiffness, plasticity, and viscoelasticity of ACRMA were less affected by aging than crumb rubber-modified asphalt (CRMA). After aging, ACRMA exhibited better high-temperature performance and permanent deformation resistance than CRMA. The thermal aging process of ACRMA was analyzed, and the anti-aging mechanism model was established. The anti-aging performance of ACRMA was better than that of CRMA.

• Record URL:
  https://doi.org/10.1016/j.conbuildmat.2020.120773
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0950061820327781
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2020 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Yin, Lei
  • Yang, Xiaolong
  • Shen, Aiqin
  • Wu, Hansong
  • Lyu, Zhenfeng
  • Li, Bo
• Publication Date: 2021-1-18

Language

• English

Media Info

• Media Type: Web
• Features: Figures; Photos; References; Tables;
• Serial:
  • Construction and Building Materials
  • Volume: 267
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Aging (Materials); Asphalt rubber; Crumb rubber; Mechanical properties; Microwaves; Physical properties; Rheological properties
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01761012
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 19 2020 3:18PM